Global Patent Index - EP 2731363 A1

EP 2731363 A1 20140514 - A method and system for accurate straight line distance estimation between two communication devices

Title (en)

A method and system for accurate straight line distance estimation between two communication devices

Title (de)

Verfahren und System zur genauen Schätzung des geradlinigen Abstands zwischen zwei Kommunikationsvorrichtungen

Title (fr)

Procédé et système pour une estimation précise de la distance en ligne droite entre deux dispositifs de communication

Publication

EP 2731363 A1 20140514 (EN)

Application

EP 13189393 A 20131018

Priority

IN 3273MU2012 A 20121112

Abstract (en)

A method and system is provided for estimating proximity and accurately calculating the straight line distance between the communicating Bluetooth enabled portable communication devices. Particularly, the invention provides a method and system for capturing the received signal strength indicator (RSSI) values form at least one target communication device (204) by the reference communication device (202); calculating the constant values of properties of communication environment of the devices by utilizing captured received signal strength indicator (RSSI) values; and deriving accurate straight line distance between the reference communication device (202) and the target communication device (204) by utilizing calculated constant values of properties of communication environment of the devices.

IPC 8 full level

G01S 5/02 (2010.01); G01S 11/06 (2006.01); H04M 1/00 (2006.01); H04M 11/00 (2006.01); H04W 4/02 (2009.01); H04W 4/80 (2018.01); H04W 84/10 (2009.01); H04W 92/18 (2009.01)

CPC (source: CN EP US)

G01S 5/021 (2013.01 - EP US); G01S 5/0273 (2013.01 - EP US); G01S 5/0284 (2013.01 - EP US); H04W 4/023 (2013.01 - CN EP US); H04W 4/80 (2018.01 - US)

Citation (search report)

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Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2731363 A1 20140514; EP 2731363 B1 20190206; AU 2013245458 A1 20140529; AU 2013245458 B2 20150618; CN 103809153 A 20140521; CN 103809153 B 20170412; DK 2731363 T3 20190513; ES 2723795 T3 20190902; JP 2014095697 A 20140522; JP 6177089 B2 20170809; US 2014134948 A1 20140515; US 9154904 B2 20151006

DOCDB simple family (application)

EP 13189393 A 20131018; AU 2013245458 A 20131014; CN 201310508313 A 20131024; DK 13189393 T 20131018; ES 13189393 T 20131018; JP 2013221178 A 20131024; US 201314051733 A 20131011